Earth

A character in a frilly outfit wields a large chainsaw with the name "AYUMU" glowing on the blade, then the scene cuts to a close-up of a blonde character with red eyes smiling as they clash swords with another character, followed by a shot of two characters locked in a struggle, one with dark hair and a determined expression, the other with blonde hair and a pained look, all set against a dark, purple-lit background.